<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>待办事项</title>
    <link rel="stylesheet" href="css/style.css">
</head>
<body>

    <div class="div">

       <div class="nn clearfix">
           <input type="text" id="input" placeholder="请添加待办事项...">
           <button id="button">添加</button>
       </div>

        <ul id="ul"></ul>

    </div>


<script src="js/script.js"></script>
</body>
</html>